https://physicaladdons.com/blog/tags/microscratches/ Recent content in microscratches on Blog Hugo -- gohugo.io en-us Sat, 12 Feb 2022 00:00:00 +0000 https://physicaladdons.com/blog/post/001-micro-scratches/ Sat, 12 Feb 2022 00:00:00 +0000 https://physicaladdons.com/blog/post/001-micro-scratches/ Goal for this experiment is again automotive shader related - I want to achieve realistic microscratching on shiny surfaces. This is my first test. I am not entirely satisfied, but I am getting there eventually. In order to get the anisotropic reflections, you need to calculate the scratch normals. Initially I started with a V shape groove, but a U shape gave me more ‘stable’ results with less sampling. Now only the groove direction towards the light source lights up.